Commit 68d87513 authored by Frederic Weisbecker's avatar Frederic Weisbecker
Browse files

x86: Remove TIF_NOHZ 



Static keys have replaced TIF_NOHZ to optimize the calls to context
tracking. We can now safely remove that thread flag.

Signed-off-by: default avatarFrederic Weisbecker <frederic@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@kernel.org>
parent 490f561b

arch/x86/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -211,7 +211,6 @@ config X86 
	select HAVE_STACK_VALIDATION		if X86_64

	select HAVE_RSEQ

	select HAVE_SYSCALL_TRACEPOINTS

	select HAVE_TIF_NOHZ			if X86_64

	select HAVE_UNSTABLE_SCHED_CLOCK

	select HAVE_USER_RETURN_NOTIFIER

	select HAVE_GENERIC_VDSO

arch/x86/include/asm/thread_info.h

+0 −2
Original line number Diff line number Diff line
@@ -92,7 +92,6 @@ struct thread_info { 
#define TIF_NOCPUID		15	/* CPUID is not accessible in userland */

#define TIF_NOTSC		16	/* TSC is not accessible in userland */

#define TIF_IA32		17	/* IA32 compatibility process */

#define TIF_NOHZ		19	/* in adaptive nohz mode */

#define TIF_MEMDIE		20	/* is terminating due to OOM killer */

#define TIF_POLLING_NRFLAG	21	/* idle is polling for TIF_NEED_RESCHED */

#define TIF_IO_BITMAP		22	/* uses I/O bitmap */
@@ -122,7 +121,6 @@ struct thread_info { 
#define _TIF_NOCPUID		(1 << TIF_NOCPUID)

#define _TIF_NOTSC		(1 << TIF_NOTSC)

#define _TIF_IA32		(1 << TIF_IA32)

#define _TIF_NOHZ		(1 << TIF_NOHZ)

#define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)

#define _TIF_IO_BITMAP		(1 << TIF_IO_BITMAP)

#define _TIF_FORCED_TF		(1 << TIF_FORCED_TF)

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